| Raijin-2 | |
| Names List: | Rising-2 SpriteSat |
| Mission Type: | Earth observation |
| Operator: | Tohoku University |
| Cospar Id: | 2014-029D |
| Satcat: | 39769 |
| Website: | At tohoku.ac.jp |
| Mission Duration: | (ongoing) |
| Launch Mass: | 42kg (93lb) |
| Launch Rocket: | H-IIA 202 |
| Launch Site: | Tanegashima Space Center |
| Orbit Reference: | Geocentric |
| Orbit Eccentricity: | 0.0013 |
| Orbit Periapsis: | 629.8km (391.3miles) |
| Orbit Apoapsis: | 647.4km (402.3miles) |
| Orbit Inclination: | 97.9° |
| Orbit Period: | 97.5 min |
| Apsis: | gee |
Raijin-2 (Rising-2) is a Japanese micro-satellite launched in 2014. The satellite is built around a 10 cm diameter, 1m focal length Cassegrain telescope and features the following instruments:
All instruments are powered by GaAs solar cells mounted on the spacecraft body, with estimated electrical power of 47.6W. The spacecraft features an unusual central-pillar bus, inherited from the Sprite-Sat satellite. The attitude control is done by means of reaction wheels and magneto-torquers, and qualified for 0.1 degrees angular accuracy.
RISING-2 was launched from Tanegashima, Japan, on 24 May 2014 by a H-IIA rocket.
The satellite is intended for atmosphere research, especially for gathering statistics on cloud formation and the occurrence of sprites in the upper atmosphere. Mission data are down-linked in S-band with maximal data rate of 38.4 kbit/s.[1]